Gary Smith wrote:
>
> I am wondering how I, without all those varieties of test gear can
> determine if indeed there is a significant offset that exists with
> the 8 pole filters in my K3 and if it exists to know how much it + or
> - it is.
>
Feed the K3's audio into your pc's sound card and run a spectrum analysis
program. Check for symmetry in the passband response around your sidetone
frequency (cw filters). Observe while varying the offset. A small amount
of asymmetry is no problem but it shouldn't be noticeably skewed to one
side. (set K3 dsp width=filter width)
73,
Barry N1EU
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